21,

27,

V-blocks are available in grades of
(ಹ) 01 (9) 2
(C) Aland A2 >) AandB

‘Where is pin hook spanner used ?
(ಹ) Circular nut having slot (B) Hexagonal nut
(¢) Square nut (D) None of the above

The best way of avoiding accident is by
(ಹ) Doing work in ancient way
0) Observing safety rules related to job, machine and work piece
(ಲ) Doing work in one’s own way
(D) Using safety equipment

A 6H7 holes is to be reamed in a steel work piece. What size of drill will be required ?
(ಯ) 5.5mm (8) 58mm
(ಲ) 6.0mm D) 62mm

Gun metal is an alloy of
(ക) copper, tin and zinc (B) copper, lead and zinc
(ಲ) iron, zinc and nickel (D) aluminum, lead and nickel

An oily floor should be cleaned by
(A) Cotton waste (B) Putting water
(€) Putting saw dust (D) Spraying carbon dioxide or sand

The point angle of twist drill depends upon the
(ಹ) cutting speed (8) type of drilling machine
(ಲ) size of drill (D) material to be drilled

Carbon content in cold chisel is
(മ 0.6t00.7% (8) 12t01.4%
©) 03t00.5% യ 09t01.1%

The movable jaw of a bench vice is not moving even through the spindle is turned
(ക) fixed and movable jaw are over tight
(8) spindle pin is broken
(C) spring is not functioning
(D) threads on spindle are slightly worn out

5 105/2018
[P.T.0]